Sash-holder



(No Model.)

J. SGHOFIELD.

SASH HOLDER.

No. 429,364. Patented June 3, 1890.

spring c, is secured thereon by rivets or other .ent points of elevationof the lower sash or UNITED STATES ArtNr FFICE.

JOHN SOHOFIELD, OF HOLYOKE, MASSACHUSETTS.

SPECIFICATION forming part'of Letters Patent No. 429,364, dated June 3,1890.

Application filed September 7, 1889.

To all whom it may concern:

Be itknown that I, JOHN SCHOFIELD, of Holyoke, in the county of Hampdenand State of Massachusetts, have invented a new and use'-l fulImprovement in Sash-Supports, of which the following is a full, clear,and exact description.

' rlhe object of my invention is to produce a simple, cheap, andpractical device which can be readily applied to new or old sash andwhich will support the sash reliably at differf lowered adjustment ofthe upper sash.

lVith these objects in view my invention consists in the construct-ionandcombination of parts, as hereinafter described, and indicated in theclaims.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure l is a face elevationof a window frame and sash, the molding thatforms a 1inish'and covers the Stiles of the frame being removed toexpose locking-notches in the stiles, the improved sash-supports beingalso shown in position on the sash. Fig. 2 is a transverse section ofthe frame, taken on the line oo. (See Fig. l.) Fig. 3 is an enlargedvertical section of a portion of a windowframe and the improvedsash-support in position on a portion of the frame of a sash that isshown broken away to expose the sashsupport; and Fig. 4 is a view inelevation of the sash-support enlarged and detached from the frame, theface, which when in position is adjacent to the window-frame, beingshown.

The sash-support consists, essentially, of a bracket-frame C, having arecess or pocket C formed therein for the reception of a platespring c,which latter is coiled or wrapped upon itself at each end, so as toproduce volute scrolls e, that have their inner terminals affixed to thepintles f, which project from or through the parallel walls t' of thebracketframe C and are fastened thereto'. The central portion of theplate-spring c is bent outwardly at c', so as to assume an elliptical orcircular form, considered edgewise, and a reenforce block d, whichconforms to the inner surface of the central curved portion of theSerial No. 323,251. (No model.)

sash-support j ust described is inserted in pairs.

oppositely in suitable cavities excavated in the edges of the upper andlower sash-frames B B,lthe center swells of the springs'c proj ectingbeyond the face of the bracket-frame, so as to spring into matingnotches a, as before mentioned. The series of notches a are cut in thewindow-Stiles A in the inner faces of the same at such points as arepreferred for the elevation or lowered adjustment of the lower and uppersashes, it being evident that said notches must be equal in width tothat of the springs c, so as to admit freely the re-enforced portionsc', and that these notches be formed in the parallel grooves usuallyprovided for the upper and lower sash.

In use the operation of the sash-supports is automatic, as the strengthof their springs c is so proportioned to the weight of the sash thatthese willbe reliably sustained, and when a change of position of eitherthe upper or lower sash is desired it is only necessary to push thelower sash up or pull the top sash down until the right pair of notchesis engaged by the springs c, when the sash will be locked instantly. lfproperly constructed, but a moderate degree of force need be exerted toadjust the sash as stated.

The resilience of the volute scrolls e, formed upon the ends of theplate-springs c, affords a yielding action thereto and permits them toassume the depressed position shown in dotted lines in Fig. 3, and whenpressure is relaxed to resume their normal shape, as shown in full linesin the same figure. Danger of breakage is avoided by provision of thescroll ends j ust named, and undue resistance to compression that wouldresult if the ends were not rendered capable of yielding is entirelyobviated by the construction of parts as described.

Having fully described my invention, I claim as new and desire to secureby Letters Patentl. A sash-support having a bracket-frame IOO and ecurved plate-spring which is coiled at formed near its ends, which coilsare secured lo each end into volute scrolls that are attached to bytheirterminals to transverse pintles `which Jche bracket-frame,substantially as set forth. are fixed in the Walls of thebracket'franle,

2. A sash-support having a bracket-frame substantially as set forth.which is recessed and has parallel walls on two sides and a plate-springthat-'s curved 011t- JOHN SCIIOFIELD.

Wardly from the bmekebfreme near its mid- VVtnesses: dle and has a,re-enforee bloekseeured thereon DAY CHADWICK, and is further providedwith volute coils JOHN CHADWICK.

